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- Changed the calculation of the current sector count to read or write from both sides of a floppy in one step.

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- Set the EOT sector always to the last sector of a floppy.

svn path=/trunk/; revision=14506
This commit is contained in:
Hartmut Birr 2005-04-05 17:12:52 +00:00
parent 80eabf0040
commit 785882957e
1 changed files with 3 additions and 3 deletions
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6
reactos/drivers/storage/floppy/readwrite.c
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@ -654,10 +654,10 @@ VOID NTAPI ReadWritePassive(PDRIVE_INFO DriveInfo,
KdPrint(("floppy: ReadWritePassive(): computing number of sectors to transfer (StartSector 0x%x): ", StartSector));
/* 1-based sector number */
if( ((DriveInfo->DiskGeometry.SectorsPerTrack - StartSector) + 1) <
if( (((DriveInfo->DiskGeometry.TracksPerCylinder - Head) * DriveInfo->DiskGeometry.SectorsPerTrack - StartSector) + 1 ) <
(Length - TransferByteOffset) / DriveInfo->DiskGeometry.BytesPerSector)
{
CurrentTransferSectors = (UCHAR)(DriveInfo->DiskGeometry.SectorsPerTrack - StartSector) + 1;
CurrentTransferSectors = (UCHAR)((DriveInfo->DiskGeometry.TracksPerCylinder - Head) * DriveInfo->DiskGeometry.SectorsPerTrack - StartSector) + 1;
}
else
{
@ -703,7 +703,7 @@ VOID NTAPI ReadWritePassive(PDRIVE_INFO DriveInfo,
/* Issue the read/write command to the controller. Note that it expects the opposite of WriteToDevice. */
if(HwReadWriteData(DriveInfo->ControllerInfo, !WriteToDevice, DriveInfo->UnitNumber, Cylinder, Head, StartSector,
DriveInfo->BytesPerSectorCode, StartSector + CurrentTransferSectors, 0, 0xff) != STATUS_SUCCESS)
DriveInfo->BytesPerSectorCode, DriveInfo->DiskGeometry.SectorsPerTrack, 0, 0xff) != STATUS_SUCCESS)
{
KdPrint(("floppy: ReadWritePassive(): HwReadWriteData returned failure; unable to read; completing with STATUS_UNSUCCESSFUL\n"));
RWFreeAdapterChannel(DriveInfo->ControllerInfo->AdapterObject);